"You don't like the game, don't play it. It's as simple as that."
if it were as simple as that i would probably avoid like 80% of all online games i come across.
since i can't decide how best to point out the problem(s) with pay-to-win aspect of gaming i'll just do a simple comparison for you:
Path of Exile: the microtransactions are purely cosmetic with the only account related purchase options being able to add tabs (more space) to your stash.
Diablo 3: the obvious real money auction house...i hope whoever came up with this idea suffers greatly for bringing something like that into the world of gaming. its everything you could get from currency/item farming companies in 1 neat package. tl;dr its all the worst economy breaking aspects for bigger mmo's in 1 spot.
microtransactions in Path of Exile? harmless.
microtransactions in Diablo 3? probably a lot of peoples worst nightmare if they hate currency/item farming companies that plague many mmo's.
i could create a new account right now and shell out a couple hundred $ in the rmah and instantly have a uber character with no effort at all. would that make me any better than anyone else, say those who choose to play games normally? no, it'd actually make me seem a good bit worse tbh, that and if i ever did such a thing i'd probably hate myself too for it.